Advertisements
Advertisements
प्रश्न
State one relevant observation for the following:
At the anode when aqueous copper sulphate solution is electrolysed using copper electrodes.
Advertisements
उत्तर १
Copper anode itself ionizes to give Cu2+ ions.
\[\ce{Cu - 2e- -> Cu^{2+}}\]
उत्तर २
The anode slowly dissolves, but the colour of copper sulphate does not change. The copper anode ionises, producing Cu2+ ions that enter the CuSO4 solution. It accepts electrons to form Cu2+.
संबंधित प्रश्न
Identify the substance underlined, in the following case
The electrolyte used for electroplating an article with silver.
Give reasons why In the electroplating of an article with silver, the electrolyte sodium argentocyanide solution is preferred over silver nitrate solution.
Copy and complete the following table:
| Anode | Electrolyte | |
| Purification of copper |
Give one word or phrase for the following:
Electrolytic deposition of a superior metal on a baser metal.
How would you change Cu2+ ion to Cu?
Give three applications of electrolysis.
The following question relate to the electroplating of an article with silver.
Name the electrode formed by the article which is to be plated.
The electrolyte used for electroplating an article with silver is ______.
Which solution is preferred as electrolyte, CuSO4 or FeSO4?
Write two applications of electrolysis in which the anode diminishes in mass.
